yes
yes
yes
A light bulb is a simple machine. A light bulb is a screw.A screw is a simple machine.
Yes.
Screw DriverDoor LockScrew lid jarMeat Grinder
You simply turn off the light switch ( so you don't get zapped). Wait a minute or so for the bulb to cool, then unscrew the burnt out light and reinsert a working light bulb. Be sure to tighten the bulb (so that it makes good contact with the base) , but don't force it or over-tighten.Turn the light off 1st to make sure you don't electrocute yourself, make sure to test the light after that.Put it in and screw it clockwise. Yes, simple.In a clockwise direction, until you can't screw anymore.Caution: If you screw it in too much or too hard, it might break.
Yes, a light bulb is matter.
Yes, the inside of a light bulb is a partial vacuum.
Light bulb? Yes
yes, there is a gas in a light bulb you energise it and it glows.
Yes, the word 'light bulb' is a noun, a compound noun, a word for a thing.
Yes, a 100-watt light bulb is brighter than a 60-watt light bulb because it produces more light.